Annotation caching causes application instance mixups

 
    /**
     * Gets the annotations applied to a class.
     * 
     * @param string|ReflectionClass $class The name or ReflectionClass of the class from which
     * the class annotations should be read.
     * @return array An array of Annotations.
     */
    public function getClassAnnotations(ReflectionClass $class)
    {
        $cacheKey = $class->getName() . self::$CACHE_SALT;

        // Attempt to grab data from cache
        if (($data = $this->cache->fetch($cacheKey)) !== false) {
            return $data;
        }
        
        $annotations = $this->parser->parse($class->getDocComment(), 'class ' . $class->getName());
        $this->cache->save($cacheKey, $annotations, null);
        
        return $annotations;
    }